Grendel is on the lookout for his new home. He didn't quite fit the bill for the type of residence he's acustomed to, so for now, he hides elswhere.
Who is Grendel? I suppose that all depends on which information you discover, but for my purpose, he's a Scandinavian mythological beast, who was a powerful troll like monster, that terrorised the great hall of Heorot, that was provoked by the singing of the men that lived there, and was said to be covered in scales or spikes. He was also rumoured to be a descendant to the biblical character Cain!
The cache is not at the posted coordinates! But you need to go there to obtain the information for the final.
At the given coordinates, look to 45 degrees or NE to a small sign with one word about 8 metres away (4 letters). Add the value of the letters.
Let this result equal A.
Final can be found at :
S34 04. ( 4 x A ) + 25
E150 44. ( 9 x A ) + 29
Checksum (last three numbers) S = 19, E = 11
Please BYOP